Month: December 2022

Li, Jiting published the artcileSynthesis and properties of pyridyl dithienyl ethene axially coordinated to Mn(II)-porphyrin, COA of Formula: C15H14Cl2S2, the publication is Yingyong Huaxue (2017), 34(4), 402-407, database is CAplus.

Organic photochromic materials have bottleneck problems including low photon yield, poor fatigue resistance and destruction of recorded information after read-out in practical application. In this paper the pyridyl dithienyl ethene axially coordinated to Mn(II)-porphyrin was synthesized by 1-(5-chloro-2-methylthien-3-yl)-2-[5-pyridyl-2-methylthien-3-yl] cyclopentene via halogenations, Friedel-Crafts acylation, McMurry coupling and Suzuki coupling by using 2-methyl-thiophene as the starting material coordinating with Mn(II)-porphyrin. Photochromic properties and fatigue resistance of the target compound were investigated by UV-visible (UV-Vis) spectrum, and the function of nondestructive readout was also reached by fluorescence spectrum. The exptl. results indicate that the target compound possesses good photochromic properties and fatigue resistance, and the ”write-read-erase” process can be achieved by using the light of 254 nm, 490 nm, and 550 nm, resp., without concomitant loss of data which is expected to be used in binary storage devices.

Yingyong Huaxue published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C15H14Cl2S2, COA of Formula: C15H14Cl2S2.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Hsu, Ling-Huang published the artcileNanofibrous hydrogels self-assembled from naphthalene diimide (NDI)/amino acid conjugates, HPLC of Formula: 42074-68-0, the publication is RSC Advances (2015), 5(26), 20410-20413, database is CAplus.

The combination of a naphthalene diimide (NDI) group and a single amino-acid of serine (Ser) or lysine (Lys) can be used to promote the formation of a supramol. hydrogel, which indicates the aromatic amino acid is not necessary to be used in the structural design of NDI-capped small mol. hydrogelators. An equimolar ratio of NDI-Ser and NDI-Lys can form a stable hydrogel under neutral conditions and its gel-to-sol transition temperature is higher than 37 °C. This work, as the first example of NDI-containing hydrogelators without aromatic rings in the side chains of amino acids, illustrates a new approach to design NDI-capped supramol. hydrogels.

RSC Advances published new progress about 42074-68-0. 42074-68-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Benzyl chloride,Benzene, name is 2-Chlorotrityl chloride, and the molecular formula is C19H14Cl2, HPLC of Formula: 42074-68-0.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Hand, Owen W. published the artcileOrganic reactions at surfaces: a study of carnitine by secondary ion mass spectrometry, Synthetic Route of 6249-56-5, the publication is Organic Mass Spectrometry (1988), 23(1), 16-25, database is CAplus.

Carnitine inner salt, Me₃N⁺CH₂CH(OH)CH₂CO₂^–, and carnitine hydrochloride, Me₃N⁺CH₂CH(OH)CH₂CO₂H Cl^–, in the solid state undergo ion-beam-induced intermol. Me transfer reactions as shown by Me₃N⁺CH₂CH(OH)CH₂CO₂Me ions at m/z 176 in their pos. ion spectra. In the case of carnitine HCl, the product ion is three times as abundant as the intact cation. For the inner salt however, the product is less than one-tenth as abundant as [M + H]⁺. In both cases, the reaction can be precluded by dissolution of the sample, supporting an intermol. mechanism. The neg. ion spectra for these compounds contain no [M – CH₃]^– ions, suggesting that simple transmethylation does not occur. Rather it is proposed that the inner salt abstracts a Me group from the intact carnitine cation to yield [M + CH₃]⁺ and a neutral species, the driving force being a minimization of the total number of charges desorbed into the gas phase. Thermodn. data favor this mechanism as do data for other carnitine salts. The reaction appears to be inhibited when one reactant is present in excess. This is the case for carnitine HNO₃ and CH₃SO₃H, which tend to liberate the intact cation since the anions are large and polarizable. It is also the case for small, hard anions like fluoride, which appear to favor release of the inner salt, hence the cation at m/z 162 is of low abundance and the transmethylation product (m/z 176) is absent. The extent of the reaction is also dependent on the methods of preparation of the sample, and deposition of the salts from solution greatly reduces the extent of Me transfer. [M – CH₃]^– is observed when glycerol is used as a matrix, possibly due to a matrix-analyte Me transfer reaction.

Organic Mass Spectrometry published new progress about 6249-56-5. 6249-56-5 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst,Inhibitor,Natural product, name is 3-Carboxy-N,N,N-trimethylpropan-1-aminium chloride, and the molecular formula is C7H16ClNO2, Synthetic Route of 6249-56-5.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Cervena, Irena published the artcileNeurotropic and psychotropic agents. CXLIX. Synthesis of arylthioacetamidoximes as potential antidepressants, Formula: C10H11ClO2S, the publication is Collection of Czechoslovak Chemical Communications (1981), 46(5), 1188-98, database is CAplus.

Reactions of PhSH and 16 of its derivatives with ClCH₂CN gave arylthioacetonitriles which were treated with NH₂OH to gave the title compounds I [R¹R² = H, 4-Me, 4-Et, 4-Cl, 2-, 3- and 4-OMe, 4-OEt, 4-SMe, 4-SEt, 2-OMe-4-Cl, 3-OMe-4-Cl, 3,4-(OMe)₂, 2,3-benzo, 3,4-benzo, 2,3-(CH₂)₄, 3,4-(CH₂)₄]. Some of the compounds exhibited antireserpine activity in the tests of ptosis and reserpine hypothermia in mice (LD and ED given).

Collection of Czechoslovak Chemical Communications published new progress about 61551-49-3. 61551-49-3 belongs to chlorides-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 5,6,7,8-Tetrahydronaphthalene-2-sulfonyl chloride, and the molecular formula is C10H11ClO2S, Formula: C10H11ClO2S.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Wei, Zuojun published the artcileNitrogen-Doped Graphene-Supported Iron Catalyst for Highly Chemoselective Hydrogenation of Nitroarenes, Synthetic Route of 350-30-1, the publication is ChemCatChem (2018), 10(9), 2009-2013, database is CAplus.

A nitrogen-doped graphene-supported iron catalyst was used for the first time in hydrogenation of a series of nitroarenes to give the corresponding aromatic amines ArNH₂ [Ar = Ph, 4-H₂CCNC₆H₄, 2-Cl-3-pyridyl, etc.] with excellent activity and chemoselectivity under mild reaction conditions. Physicochem. characterization of the catalyst by transmission electron microscopy, X-ray diffraction, XPS and Moessbauer spectroscopy revealed the formation of iron particles with an iron oxide core and a metallic iron shell that were coated by a few layers of nitrogen-doped graphene. The unique structure of FeN_x/C in the catalyst proved to contribute to the hydrogenation activity.

ChemCatChem published new progress about 350-30-1. 350-30-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Nitro Compound,Benzene, name is 3-Chloro-4-fluoronitrobenzene, and the molecular formula is C10H15NO, Synthetic Route of 350-30-1.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Guo, Chuangxing published the artcileStructure-based design of novel human Pin1 inhibitors (III): Optimizing affinity beyond the phosphate recognition pocket, Application In Synthesis of 51656-68-9, the publication is Bioorganic & Medicinal Chemistry Letters (2014), 24(17), 4187-4191, database is CAplus and MEDLINE.

The design of potent Pin1 inhibitors has been challenging because its active site specifically recognizes a phospho-protein epitope. The de novo design of phosphate-based Pin1 inhibitors focusing on the phosphate recognition pocket and the successful replacement of the phosphate group with a carboxylate have been previously reported. The potency of the carboxylate series is now further improved through structure-based optimization of ligand-protein interactions in the proline binding site which exploits the H-bond interactions necessary for Pin1 catalytic function. Further optimization using a focused library approach led to the discovery of low nanomolar non-phosphate small mol. Pin1 inhibitors. Structural modifications designed to improve cell permeability resulted in Pin1 inhibitors with low micromolar anti-proliferative activities against cancer cells.

Bioorganic & Medicinal Chemistry Letters published new progress about 51656-68-9. 51656-68-9 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Carboxylic acid,Benzene, name is 3-(2,6-Dichlorophenyl)propanoic acid, and the molecular formula is C9H8Cl2O2, Application In Synthesis of 51656-68-9.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Liu, Jian-Li published the artcilePalladium-catalyzed carbonylative synthesis of 3-arylquinolin-2(1H)-ones from benzyl chlorides and o-nitrobenzaldehydes, SDS of cas: 939-99-1, the publication is Molecular Catalysis (2021), 111842, database is CAplus.

A palladium-catalyzed carbonylative cyclization of benzyl chlorides RCH₂Cl (R = Ph, naphthalen-2-yl, pyridin-3-yl, etc.) with o-nitrobenzaldehydes R¹CHO (R¹ = 2-nitrophenyl, 6-nitro-2H-1,3-benzodioxol-5-yl, 4-[methoxy(oxo)methane]-2-nitrophenyl, etc.) has been developed for the synthesis of 3-arylquinolin-2(1H)-ones I (R² = H, Me, F, Cl, methoxycarbonyl; R³ = H, OMe, F, Cl; R²R³ = -(OCH₂O)-). Mo(CO)₆ played a dual role as both a CO surrogate and a reductant in this carbonylative transformation.

Molecular Catalysis published new progress about 939-99-1. 939-99-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Benzyl chloride,Benzene, name is 1-(Chloromethyl)-4-(trifluoromethyl)benzene, and the molecular formula is C8H6ClF3, SDS of cas: 939-99-1.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Kikuchi, Haruhisa published the artcileIsolation of a Cyclic Depsipeptide, Aspergillicin F, and Synthesis of Aspergillicins with Innate Immune-Modulating Activity, Safety of 2-Chlorotrityl chloride, the publication is Journal of Natural Products (2015), 78(8), 1949-1956, database is CAplus and MEDLINE.

Innate immunity is the front line of self-defense against microbial infection. After searching for natural compounds that regulate innate immunity using an ex vivo Drosophila culture system, we identified a new cyclic depsipeptide, aspergillicin F, from the fungus Aspergillus sp., as an innate immune suppressor. The total synthesis and biol. evaluation of the aspergillicin family, including aspergillicin F, were performed, revealing that slight structural differences in the side chains of amino acid residues alter innate immunity-regulating activity.

Journal of Natural Products published new progress about 42074-68-0. 42074-68-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Benzyl chloride,Benzene, name is 2-Chlorotrityl chloride, and the molecular formula is C19H14Cl2, Safety of 2-Chlorotrityl chloride.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Oh, Keimei published the artcileSynthesis and structure-activity relationships of new pyrazole derivatives that induce triple response in Arabidopsis seedlings, Name: 4-Chloro-3-(trifluoromethyl)benzenesulfonyl Chloride, the publication is Journal of Pesticide Science (Tokyo, Japan) (2019), 44(4), 233-241, database is CAplus and MEDLINE.

Twenty-seven analogs of pyrazole derivatives I (R¹ = Me, Ph, allyl, tert-butyl; R² = 2-fluorophenyl, 3-chloro-4-fluorophenyl, 4-phenylazo, etc.) were synthesized and subjected to structure-activity relationship studies on inducing the triple response in Arabidopsis seedlings. The compound I (R¹ = allyl; R² = 3,4-dichlorophenyl) (II) has been found to exhibit potent activity on inducing the triple response in Arabidopsis seedlings. Compound II (10μM) induced an exaggerated apical hook in Arabidopsis seedlings. The curvature of the hook of the Arabidopsis seedlings was found to be 300 ± 23°, while ethephon (10μM), a prodrug of ethylene, and a non-chem. treated control were found to be 128 ± 19 and 58 ± 16°, resp. Compound II also exhibited potent activity on reducing stem elongation. The hypocotyl length of Arabidopsis seedlings treated with compound II (10μM) was found to be 0.25 ± 0.02 cm, while those of ethephon-treated (10μM) and treated controls were found to be 0.69 ± 0.06 and 1.15 ± 0.01 cm, resp. Compound II displayed potency inhibiting the root growth of Arabidopsis seedlings similar to that of ethephon.

Journal of Pesticide Science (Tokyo, Japan) published new progress about 32333-53-2. 32333-53-2 belongs to chlorides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Chloride,Sulfonyl chlorides,Benzene, name is 4-Chloro-3-(trifluoromethyl)benzenesulfonyl Chloride, and the molecular formula is C7H3Cl2F3O2S, Name: 4-Chloro-3-(trifluoromethyl)benzenesulfonyl Chloride.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Hoyerova, Klara published the artcileAuxin molecular field maps define AUX1 selectivity: many auxin herbicides are not substrates, Application of 3-Chloro-4-hydroxyphenylacetic acid, the publication is New Phytologist (2018), 217(4), 1625-1639, database is CAplus and MEDLINE.

Summary : Developmental responses to auxin are regulated by facilitated uptake and efflux, but detailed mol. understanding of the carrier proteins is incomplete. We have used pharmacol. tools to explore the chem. space that defines substrate preferences for the auxin uptake carrier AUX1. Total and partial loss-of-function aux1 mutants were assessed against wild-type for dose-dependent resistance to a range of auxins and analogs. We then developed an auxin accumulation assay with associated math. modeling to enumerate accurate IC50 values for a small library of auxin analogs. The structure activity relationship data were analyzed using mol. field analyses to create a pharmacophoric atlas of AUX1 substrates. The uptake carrier exhibits a very high level of selectivity towards small substrates including the natural indole-3-acetic acid, and the synthetic auxin 2,4-dichlorophenoxyacetic acid. No AUX1 activity was observed for herbicides based on benzoic acid (dicamba), pyridinyloxyacetic acid (triclopyr) or the 6-arylpicolinates (halauxifen), and very low affinity was found for picolinic acid-based auxins (picloram) and quinolinecarboxylic acids (quinclorac). The atlas demonstrates why some widely used auxin herbicides are not, or are very poor substrates. We list mol. descriptors for AUX1 substrates and discuss our findings in terms of herbicide resistance management.

New Phytologist published new progress about 33697-81-3. 33697-81-3 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Carboxylic acid,Benzene,Phenol, name is 3-Chloro-4-hydroxyphenylacetic acid, and the molecular formula is C8H7ClO3, Application of 3-Chloro-4-hydroxyphenylacetic acid.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics